Introduction

Use this guide to replace the USB port board in your Samsung Galaxy S4.

Image 1/2:
  • Pry with a plastic opening tool, or your fingernail, in the divot to the left of the rear-facing camera, near the power button.

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Image 1/3:
  • Lift the rear case by the corner nearest the divot and remove it from the phone.

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Image 1/3: After the click, release the card and it will pop out of its slot.
  • Use the flat end of a spudger, or your fingernail, to press the microSD card slightly deeper into its slot until you hear a click.

  • After the click, release the card and it will pop out of its slot.

  • Remove the microSD card.

  • For reassembly, push the microSD card into the slot until it clicks in place.

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Image 1/3: Remove the battery from your phone.
  • Insert a plastic opening tool, or your finger, into the notch of the battery compartment and lift the battery upward.

  • Remove the battery from your phone.

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Image 1/3: After the click, release the card and it will pop out of its slot.
  • Use a plastic opening tool, or your fingernail, to press the SIM card slightly deeper into its slot until you hear a click.

  • After the click, release the card and it will pop out of its slot.

  • Remove the SIM card.

  • During reassembly, push the SIM card into the slot until it clicks in place.

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Image 1/1:
  • Remove the nine 4.0 mm Phillips #00 screws securing the midframe to the display assembly.

How much it will cost to replace a midframe

kannan - Reply

How much cost will be on replace a midframe

Hiren pedhadiya -

I'm seeing midframes available on Ebay for around $10.

Alex - Reply

Image 1/2: Starting on the volume button side of the phone, insert your plastic opening tool between the chrome bezel around the display glass and the larger chrome border piece.  Look for the seam between the two.
  • The midframe is secured to the display assembly by several plastic clips behind the chrome bezel of the midframe. The next few steps will guide you through separating the clips to free the midframe.

  • Starting on the volume button side of the phone, insert your plastic opening tool between the chrome bezel around the display glass and the larger chrome border piece. Look for the seam between the two.

  • Slide the opening tool along the seam, separating the plastic clips as you go.

  • Be very gentle whilst prying, and pry only enough to separate the plastic clips—there are several thin points in the midframe bezel that may crack if you bend them too much.

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Image 1/2: Slide your opening tool along the seam between the midframe and display along the bottom of the device, releasing more of the plastic clips.
  • Continue prying around the corner of the phone.

  • Slide your opening tool along the seam between the midframe and display along the bottom of the device, releasing more of the plastic clips.

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Image 1/2: Slide the opening tool along the seam.
  • Again, pry around the corner, to the power button side.

  • Slide the opening tool along the seam.

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Image 1/2: At this point, you may want to run your plastic opening tool along the entire perimeter of the device again, to make sure you've released all of the plastic clips.
  • Continue sliding the opening tool around the top of the phone, releasing the last of the clips and freeing the midframe from the display assembly.

  • At this point, you may want to run your plastic opening tool along the entire perimeter of the device again, to make sure you've released all of the plastic clips.

On my phone, there was another clip holding the white midframe to the battery compartment, in the middle of the top edge of the battery compartment, near the battery contacts. If you don't release that before removing the midframe, it is easy to break.

josephoswald - Reply

Image 1/3:
  • Remove the midframe from the display assembly.

here i leave them a video i made doing the work

https://www.youtube.com/watch?v=85pOvI6O...

enjoy

Gabriel Barrandeguy - Reply

Just to be sure does the rear frame referred by etradesupply is the same as the middle frame? I' planning to refurbish the side panel because of the dents and scratches but I just want to make sure I'm buying the right thing. The etradesupply referring the housing as rear and front housing so Im not sure which one correspond to the middle frame. Below is the link to the website http://www.etradesupply.com/oem-samsung-...

Mohd Bahij Ahmad - Reply

My Sprint S4 was slightly different then the one pictured above but I just completed this repair in under 10 minutes.. It would have been slightly quicker but fooling around with those little screws can be irritating if you have big hands.

Michael Willis - Reply

Just did this on my S4. Instructions were extremely helpful, but I had to remove a screw (step 10.5?) to remove the upper display assembly bracket. Other than that, flawless! Thanks!

JackieME - Reply

The 3rd image of the 11th step shows that when the midframe is removed, some parts come along with it (at the bottom part of it). What are these parts? should they be removed too and placed in the new midframe? Are they easy to remove?

Chris - Reply

Image 1/1:
  • Use the flat end of a spudger to disconnect the USB board cable connector from the motherboard.

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Image 1/2:
  • Gently insert the point of a spudger between the USB port and the USB port bracket to pry one side of the bracket off of its post.

Tweezers are much easier to remove USB bracket

efazio588 - Reply

Image 1/1: The bracket is slightly springy and should pop back into place on the two screw posts during reassembly.
  • Remove the USB port bracket from the USB port.

  • The bracket is slightly springy and should pop back into place on the two screw posts during reassembly.

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Image 1/2: Disconnect the antenna cable connector from the USB board.
  • Disconnect the soft button cable from the USB board cable.

  • Disconnect the antenna cable connector from the USB board.

  • Depending on your carrier, you may have an additional antenna cable. If you can access it at this point, use a spudger to disconnect it from the USB board.

My 4G LTE phone has a 4G antenna on the left side of the device that is under the USB cable and connects to the left side of the USB board. Be sure to disconnect this as well if you have a Verizon or Sprint phone.

pborgen - Reply

There's no mention of the need to detach the blue wire on the right side of the phone at this step. It's fairly obvious, but it might cause some confusion for the uninitiated.

Rebecca Clark - Reply

Which one should i use for a T-Mobile phone?

Chris Hunt II - Reply

Will a usb flex cable for s4 i19500 work on s4 sgh i337? i cant get hold of the I337 flex cable but i have access to the other one. should i try?

Majo zia - Reply

After changing the port I got the message battery temperature to low charging paused.

This is one of those generic message computers use when it doesn't know what is wrong.

So I cleaned with alcohol and q-tip the two gold contacts that are located in the mid frame. They touch the two power contacts located on the USB port board and this cleared the low temperature message and phone is charging.

Rowell - Reply

Image 1/3: Depending on your carrier the USB board may have an additional antenna cable on the back side of the USB board. Pry very carefully and stop if you encounter resistance.
  • The USB board is secured to the display assembly with light adhesive.

  • Depending on your carrier the USB board may have an additional antenna cable on the back side of the USB board. Pry very carefully and stop if you encounter resistance.

  • Gently insert the flat end of a spudger beneath the USB board to free it from the adhesive holding it in place.

  • Go slow and be careful not to bend the board.

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Image 1/1:
  • Remove the USB board from the display assembly.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

142 other people completed this guide.

13 Comments

I found this guide excellent and it is very easy to do. I didnt have the plastic opening tool but I do have a long thumbnail. It worked very well.

Too bad the replacement board I got has a defective soft button connector. I had to disassemble the phone 3 times. I thought I did It wrong the 1st time. Opened the phone a 2nd time to check.... closed the phone... nada.... USB changer works but no soft keys... put my old board back in to check the soft buttons and they work. Sent an email to the company that I bought the board from... still no answer after 24hrs. If I still have no answer by the end of the week I will post which company sold me the defect board so no one else gets burned from them. I will then try to unsolder the USB from the new board to replace the USB on my old one.

Bryan - Reply

This guide needs an update as it does not include the 4G antenna on the left side of the device that is under the USB cable and hooks up at the bottom left on the USB board up to just beside the USB connector above the battery. Pictures 12, 15, & 16 will need updated to show this cable.

rnbhays - Reply

To follow rnbhays' comment about the antenna connector on the left, it is specifically for i545 Verizon models.

I strongly suggest people to disconnect both left and right cables from the USB board prior to removing it. While doing so, my tool slipped and I accidentally broke the left cable. Thankfully I was able to crimp the connector back on the cable with tweezers and a magnifying glass 'til I get another cable ordered.

Alex - Reply

It also applies to the Sprint version as well. I have an LTE cable on the left side, and had to be very careful purchasing a replacement part to make sure it was the right one.

anonymous 1189 -

After replacement my microphone element isn't working. Possible reasons?

matthew young - Reply

Im having similar problems something doesnt work after replacing this part. Not charging, buttons not working etc. and having a hard time finding the exact version Rev 1.2 1-06

loopwireless312 -

My microphone didn't work after replacing the USB charger flex cord too. Did you ever find a solution?

swynnwoo -

Worked perfectly. Fixed my wife's phone in about 30 minutes. Definitely get the tool kit, they can be had on Amazon for less than $10. Thanks again author for posting these instructions.

Darrell Arnold - Reply

Ordered the part from iFixit. I figured the fact that it was fully tested and guaranteed for a year was worth the extra cost. The repair went smoothly with no issues.

voelkerp2 - Reply

What if my carrier is T-Mobile?

Lexx Bot - Reply

I changed my charge port because the little pin in the charge port was damaged and it was a pain to charge but now I get a "charging pause battery temp to low" notification. I've changed it now 4 times thinking I just keep getting duds. anyone know what i'm doing wrong? I've followed every step.

Trevor - Reply

I lost my USB port bracket will it course any harm to the phone as a ground connector or where can I find a new one online if needed

lenin - Reply

do you have to by the tools for it?

mamijen3 - Reply

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